Hi All,

                I have two Rs, one has been installed in Windows system and another one has been installed under UNIX system. Is there any environmental variable or function to tell me which R I am using? The reason that I need to know it is under different system, the data path could be different. I want to do something like

if it is R under Windows

                path = "/ABC"
else if it is R under UNIX,
                path = "/DEF"

Any idea? Thanks.

Best Regards,

HXD

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